cleanup

examples/dft_driver.py

@@ -64,7 +64,7 @@
 f = g.kernel()
 grad_time = time.time() - start_time
 print(f'compute time for gradient: {grad_time:.3f} s')
-exit()
+
 start_time = time.time()
 h = mf_df.Hessian()
 h.auxbasis_response = 2